Answer: 0.701 mol K
Explanation:
To find the number of moles in 21.10 g of K, we would need to know the molar mass of K.
K=30.098 g/mol
We would divide 27.10 moles by the molar mass to find how many moles of K are in 27.10 g.
[tex]21.10g*\frac{1mol}{30.098g} =0.701 mol[/tex]
